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Phase noise influence in long-range coherent optical OFDM systems with delay detection, IFFT multiplexing and FFT demodulation
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Jacobsen, Gunnar, Xu, Tianhua, Popov, Sergei, Sergeyev, Sergey and Zhang, Yimo (2012) Phase noise influence in long-range coherent optical OFDM systems with delay detection, IFFT multiplexing and FFT demodulation. Journal of Optical Communications, 33 (4). pp. 289-295. doi:10.1515/joc-2012-0047 ISSN 0173-4911.
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Official URL: http://dx.doi.org/10.1515/joc-2012-0047
Abstract
We present a study of the influence of dispersion induced phase noise for CO-OFDM systems using FFT multiplexing/IFFT demultiplexing techniques (software based). The software based system provides a method for a rigorous evaluation of the phase noise variance caused by Common Phase Error (CPE) and Inter-Carrier Interference (ICI) including – for the first time to our knowledge – in explicit form the effect of equalization enhanced phase noise (EEPN). This, in turns, leads to an analytic BER specification. Numerical results focus on a CO-OFDM system with 10–25 GS/s QPSK channel modulation. A worst case constellation configuration is identified for the phase noise influence and the resulting BER is compared to the BER of a conventional single channel QPSK system with the same capacity as the CO-OFDM implementation. Results are evaluated as a function of transmission distance. For both types of systems, the phase noise variance increases significantly with increasing transmission distance. For a total capacity of 400 (1000) Gbit/s, the transmission distance to have the BER < 10−2 for the worst case CO-OFDM design is less than 800 and 460 km, respectively, whereas for a single channel QPSK system it is less than 1400 and 560 km.
Item Type: | Journal Article | ||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Library of Congress Subject Headings (LCSH): | Optical fiber communication, Wavelength division multiplexing, Bit error rate, Phase shift keying | ||||
Journal or Publication Title: | Journal of Optical Communications | ||||
Publisher: | De Gruyter | ||||
ISSN: | 0173-4911 | ||||
Official Date: | 2012 | ||||
Dates: |
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Volume: | 33 | ||||
Number: | 4 | ||||
Page Range: | pp. 289-295 | ||||
DOI: | 10.1515/joc-2012-0047 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Date of first compliant deposit: | 17 November 2017 | ||||
Date of first compliant Open Access: | 17 November 2017 |
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